<template>
  <div class="app-container">
    <div class="el-toolbar">
      <div class="el-toolbar-body"style="justify-content: flex-start;">
        <el-button type="text"@click="exportData"><i class="fa fa-plus"/> 导出到Excel</el-button>
        <el-button type="text"@click="importData"><i class="fa fa-plus"/> 从Excel导入</el-button>
      </div>
    </div>
    <el-dialog title="导入" :visible.sync="dialogImportVisible" width="480px">
      <el-form label-position="right" label-width="170px">
        <el-form-item label="文件">
          <el-upload
          :multiple="false"
          :on-success="onUploadSuccess"
          :action="'http://localhost:8081/admin/cmn/dict/importData'"
          class="upload-demo">
            <el-button size="small" type="primary">点击上传</el-button>
            <div slot="tip" class="el-upload__tip">只能上传xls文件，且不超过500kb</div>
          </el-upload>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogImportVisible = false">
              取消
        </el-button>
      </div>
    </el-dialog>
    <el-table
      :data="list"
      style="width: 100%; margin-bottom: 20px;"
      row-key="id"
      border
      default-expand-all
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
      :load="load"
      lazy >
        <el-table-column
          prop="name"
          label="名称"
          sortable
          width="180">
        </el-table-column>
        <el-table-column
          prop="dictCode"
          label="编码"
          sortable
          width="180">
        </el-table-column>
        <el-table-column
          prop="value"
          label="值"> 
        </el-table-column>
         <el-table-column
          prop="addrecreateTime"
          label="创建时间">
        </el-table-column>
    </el-table>
  </div>
</template>

<script>
import dict from '@/api/cmn/dict'

export default {
  data() {
    return {
      list:[],
      listLoading: true,
      dialogImportVisible: false    
    }
  },
  created() {
    this.getList()
  },
  methods: {
    importData() {
      this.dialogImportVisible = true
    },

    onUploadSuccess(response, file) {
      this.$message.info('上传成功')
      this.dialogImportVisible = false
        this.getList()
    },
    exportData() {
      //这里一定要加上http://localhost:8081前缀，否则是直接跳转到页面
      window.location.href = 'http://localhost:80/admin/cmn/dict/exportData'
    },
    getList(){
      dict.findChildData(1)
      .then(response =>{
        console.log("成功"),
        console.log(response),
        this.list=response.data
      })
      .catch(error => {
        console.log(error)
      })
    },
    load(tree, treeNode, resolve) {
      dict.findChildData(tree.id)//tree：当前节点
      .then(response =>{
        console.log("成功"),
        console.log(response),
        resolve(response.data)//element-ui函数：用于把数据载入并作为当前节点的子节点
      })
      .catch(error => {
        console.log(error)
      })  
    }
  }
}
</script>
